1, if 800 tonsfour-column hydraulic pressIf the oil temperature is too high, check whether the setting value of the pressure control valve is too high. If it is too high, reduce the working pressure of the machine.
2. After the hydraulic press is naturally cooled, open the oil drain plug and take oil samples.
3. Check the viscosity index of the oil. If the viscosity is too low, it will affect the pressure index of the hydraulic press.
4. If the oil is obviously turbid and the hydraulic oil is mixed with water, it is recommended to replace it as soon as possible.
5, when replacing the hydraulic oil, be sure to put the whole800-ton four-column hydraulic pressAll the oil in the hydraulic system is drained, including the oil in the hydraulic tank, and all the oil is replaced with new oil. At the same time, it is ensured that the hydraulic oil shall not be less than 100kg each time.
6, due to the hydraulic machine hydraulic pump and its connection leakage and heat, to tighten the connection, strengthen the seal;
7. When the capacity of the hydraulic oil tank is too small and the heat dissipation condition is poor, the capacity of the oil tank should be increased and the cooling equipment should be installed;